Drink mixer



FIG. 1 is a top perspective view of a drink mixer in accordance with our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left-side elevational view thereof, a right-side elevational view thereof being a mirror image;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a drink mixer, as shown and described. 